Agitator.



No. 708,058. Patented Sept. 2,1902.

H. M. MARTINSON.

AGITATOR.

(Application filed Nov. 22, 1901.)

(No Model.)

,m: "cams PEI'ERS co. PHOTO-LITHDJWASHINGTON, a. c

UNITED STATES PATENT OFFICE.

HERMAN M. MARTINSON, OF RUMFORD FALLS, MAINE.

AGITATOR.

SPECIFICATION forming part of Letters Patent No. 708,058, datedSeptember 2, 1902. Application filed November 22, 1901. S ial 1%. 83,239. (No model.)

To ctZZ whom it may concern."

Be it known thatI, HERMAN M. MARTINSON, a subject of the King of Swedenand Norway, residing at Rumford Falls, in the county of Oxford and Stateof Maine, have invented new and useful Improvements in Agitators,

of which the following is a specification.

The object of this invention is to produce an agitator or vessel forthoroughly mixing together difierent ingredients. dients may be allliquids or partly liquid and partly in the form of solids suspended insaid liquid.

My improved agitator is particularlyadapted to mixing particles of woodwith acid and water in the manufacture of wood-pulp, and again isadapted for mixing starch, sugar, and water in the process of makingstarch, and again for mixing the mash in a brewery.

The invention consists in a reservoir, a mixin g-chamber located in saidreservoir provided with an outlet and an inlet opening, an agitator-pipeleading from the interior of said mixing-chamber to a source of power,and a ing-chamber. The invention again consists in the elements-hereinbefore set forth, in combination witha perforated partitionsnrroundin g the exterior of said mixing-chamber.

The invention again consists in a reservoir,

a mixingchamber in said reservoir, and means for adjusting the diiferentparts of which said mixing-chamber is constructed to different positionswith relation to each other, and thus varying the distance between theinlet and outlet openings in said mixingchamber.

The invention further consists in certain details of construction. andin the combination and arrangement of parts set forth in the followingspecification and particularly pointed out in the claims thereof.

Referring to the drawings, Figure 1 is a vertical longitudinalsection'of my improved agitator. Fig. 2 is a horizontal section taken online 2 2 of Fig. 1. Fig. 3 is a horizontal section taken on line 3 3 ofFig. 1.

Like numerals refer to like parts throughout the several views of thedrawings.

In the drawings, 6 is a reservoir constructed Said ingreof any desirablematerial formed in the shape of a cylinder 7, with a conical-shapedbottom ing-chamber is supported upon standards 12,

fastened to the bottom of the reservoir 6 by bolts, and is preferablyconstructed in parts, two or more, adjustable lengthwise upon eachother. Said means of adjustment may be varied without departing from thespirit of my-invention; but I have illustrated a mixing-chamber as madein two parts 13 and 14,

conical in shape, except at the point where they are adjusted one uponthe other, and at .that point they are made cylindrical, and one of saidparts is provided with an exterior screw-thread 15 to engage an interiorscrew- 7 ,thread formed upon the other part. perforated partitionlocated within said mix- Adjacentto thelowerend ofthepart13isfastened aperforated plate 16, and to said plate is attached an agitator-pipe 17,which extends downwardly from the lower end of said mixing-chamber,thence turning and passing upwardly through the reservoir, and afterpassing outwardly therefrom is connected to a source of power, eithersteam or compressed air.

A perforated partition 18 surrounds the exterior of the mixing-chamber11 and extends from said mixing-chamber across the space interveningbetween said mixing-chamber and the walls of the reservoir 6. While Ihave shown only one of said perforated partitions, it is evident that anumber may be placed at difierent heights in the reservoir, ifdesirable. At the outlet end or top of the mixing-chamber 11 I providea. cap 19 to prevent the liquid from being discharged beyond the wallsof thereservoir from the mixingchamber. Said cap is attached to the part14 of the mixing-chamber by angle-irons 20. The edge 21 of the cap 19 isnotched or corrugated, and the outlet end of the mixing-chamber isnotched at 22, the purpose of these notched edges of the outlet-openingbeing to thoroughly mix the liquid and solid substances together as theypass from the mixing-chamber 11 out into the reservoir (3.

The operation of the device as a whole is as follows: The liquids andother articles to be mixed together are placed in the reservoir 6 andthe compressed air or steam admitted through the agitator-pipe l7,discharging in the direction of the arrow, Fig. 1, into the lower end ofthe mixing-chamber 11, thus drawing the particles to be mixed into themixing-chamber at the lower end and forcing them out at the upper end inthe direction of the arrows, Fig. 1. As the liquid and solid substancesare thus driven through the mixing-chamber 11 and out into the reservoirthey pass through the perforations in the partition 18 and also throughthe perforations in the plate 16,thus becoming very thoroughly andquickly mixed.

In Fig. 1 I have shown an outlet-pipe 23, of which there may be several,if found necessary, for the purpose of drawing off the sediment from theagitator at a point above the perforated partition 18.

\Vhile I have described the agitating medium introduced through theagitator-pipe 17 as steam or compressed air, I do not intend to beunderstood as limiting my invention to the employment of either of thesetwo mediums.

Having thus described my invention, what I claim, and desire by LettersPatent to secure, 1s-.

1. In an agitator, a reservoir, a mixingchamber in said reservoir,provided with an inlet and an outlet opening, said chamber made inparts, and means to adjust said parts longitudinally with relation toeach other to vary the distance between the inlet and outlet openings insaid mixing-chamber.

2. In an agitator, a reservoir, a mixingchamber in said reservoir,provided with an inlet and an outlet opening, said chamber made inparts, means to adjust said parts longitudinally with relation to eachother and vary the distance between the inlet and outlet openings insaid mixing-chamber, and an agitator-pipe leading from the interior ofsaid mixing-chamber to a source of power.

3. In an agitator, a reservoir, a mixingchamber in said reservoir,provided with an inlet and an outlet opening, and an agitatorpipeleading from the interior of said mixingchamber to a source of power,the outlet end of said mixing-chamber being notched for the purpose setforth.

4. In an agitator, a reservoir, a mixingchamber in said reservoir,provided with an inlet and an outlet opening, an agitator-pipe leadingfrom the interior and lower end of said mixing-chamber to a source ofpower, and a cap fast to said mixing-chamber and extending across saidoutlet-opening at a distance therefrom, whereby an annular space isprovided between said cap and the outlet end of said mixing-chamber.

5. In an agitator, a reservoir, a mixingchamber in said reservoir,provided with an inlet and an outlet opening, an agitator-pipe leadingfrom said inlet-opening to a source of power, and a cap fast to saidmixing-chamber and extending across said outlet-opening,

the edge of said cap being notched for the purpose set forth.

6. In an agitator, a reservoir, a mixingchamber in said reservoir,provided with an inlet and an outlet opening, said chamber being conicalin shape, the large end of said mixing-chamber constituting theoutlet-opening thereof and the small end of said mixingchamberconstituting the inlet-openin g thereof, and an agitator-pipe leadingfrom said inlet-opening to a source of power.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

HERMAN M. MARTINSON.

Witnesses:

RALPH T. PARKER, ARTEMAS W. WING.

